Glossary
FlexLine, 299
Reticle
Line-of-sight error
(horizontal
collimation)
Vertical index error
Glass plate within the telescope with reticle.
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The line-of-sight error (c) is the deviation from the perpendicular
between the tilting axis and line of sight. This could be eliminated
by measuring in both faces.
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c
With a horizontal line of sight the vertical circle reading should be
exactly 90°(100 gon). The deviation from this value is termed the
Vertical index error (i).
i
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